Global Awakening: Eavesdropping on the SSS-level School Beauty's Inner Voice - Chapter 3 Am I really this bad? Another one seeking revenge!

Ye Yu transmigrated into a fantasy world and awakened the Dream Simulation System. After each dream, he could randomly acquire a power from the dream. Initially, Ye Yu planned to slowly grow stronger this way until he could dominate the entire world. As time passed, Ye Yu experienced more and more dreams. But he later discovered that the wives in his dreams actually existed in reality. As the saying goes, having one girlfriend is dangerous, but having many girlfriends is life-threatening. When these immensely powerful demonesses and empresses started showing up one by one, Ye Yu’s first reaction was to run away.

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

I am Ye Qing. Lucky I found a [Monster Factory] application.